Scotti is an offensive player despite of his position, has a very good air game, cold temper and high concentration when defending, a great physical condition, and a good defensive quality in the challenges with other players among his virtues of footballer. Also he is specialist in free kicks.

Scotti was born in Montevideo, but grew up in Trinidad, capital of Flores Department. He started his career playing football for the local village team Independiente in 1993, when he was between 17 and 18 years old. Scotti won the regional tournament title in his second season with Independiente in 1994. After three seasons in Independiente, in 1997 he joined to Central Español on trial. He spent only three months there before leaving for Montevideo Wanderers. In that club, Scotti played 12 games and scored one goal for the club during the Uruguayan first division tournament of that year.

In 1998, Scotti played for his first international club, the Chilean Primera División team Huachipato, in where Scotti had a good spell, for example, having much continuity, scoring goals and being elected the best player of the tournament in his position. He remained until the next season, because he was transferred to the Mexican club Necaxa. There, he achieved the third place FIFA Club World Championship 2000, after of beat 4–3 on penalties to Real Madrid. In 2001 he returned to Uruguay to play again for Montevideo Wanderers. In 2002 he was transferred to Nacional, winning the Torneo Apertura and the Campeonato Uruguayo, scoring a goal in the second final game.[1]

On 31 December 2009, it was announced that Scotti had come to verbal agreements with Colo-Colo for an undisclosed fee. He put pen to paper on a one-year deal, and joined the Santiago club before New Year's Day, along with Argentine left back Matías Quiroga. Shortly days after, Scotti was officially presented with the number 19 shirt during a press conference. He made his debut on 15 January 2010, in a friendly match against Olimpia which Colo-Colo drew 3–3 after a free kick goal from Nelson Cuevas. His league debut came on 23 January, in a 3–2 loss against Unión San Felipe and his first goal for the club was in a 3–0 win over Palestino after an excellent free kick. Some weeks later, on 8 May, Scotti proved again to be in good shape in a 5–2 victory against Cobresal, where he scored his second goal in Chile, his goal being elected the best of the week, according to CDF. After the World Cup, in where Scotti was a member of his national team that achieved the fourth place in the tournament, he very slowly began to lose his good performance and was usually replaced by Miguel Riffo. On 7 November, in a 2–2 away draw in the Chilean derby with Universidad de Chile, Scotti received his first red card for the club, having already been booked in the first half, he was shown a second yellow following a challenge with Universidad de Chile's Carlos Bueno in the second half. Scotti was harshly criticized for goals that Colo-Colo received in the tournament that lost to the Universidad Católica in second place. The team had a lead of seven points, but after many irregularities were two points that separated to Colo-Colo of Católica in the first place of the table.

On 23 June 2013, Scotti played against Tahiti in the 2013 Confederations Cup and missed a penalty at the 49th minute. Two minutes later he was red carded when he was shown a second yellow card.[2] Uruguay went on to win the match 8-0. He was standby player to Uruguay in FIFA World Cup 2014 in Brazil